Home / 2,902.32-4,006.08-1,971.36

Finding the Fourth Proportional to 2,902.32, 4,006.08 and 1,971.36

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Solution

The fourth proportional to 2,902.32, 4,006.08 and 1,971.36 is: 2,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.32 : 4,006.08 = 1,971.36 : x
  2. Step 2: Convert to fraction form
    2,902.32/4,006.08 = 1,971.36/x
  3. Step 3: Cross multiply
    2,902.32x = 4,006.08 × 1,971.36
  4. Step 4: Simplify right side
    2,902.32x = 7,897,425.87
  5. Step 5: Solve for x
    x = 7,897,425.87/2,902.32
  6. Step 6: Final answer
    x = 2,721.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.